/* <socket/named_unix_socket.h>

   C++ wrapper for a UNIX domain socket with a pathname bound to it.

   Copyright 2010-2014 OrlyAtomics, Inc.

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License. */

#pragma once

#include <cassert>
#include <string>

#include <base/class_traits.h>
#include <base/fd.h>

namespace Socket {

  class TAddress;
  class TNamedUnixSocket;
  void Bind(TNamedUnixSocket &socket, const TAddress &address);

  class TNamedUnixSocket final {
    NO_COPY(TNamedUnixSocket);

    public:
    TNamedUnixSocket(int type, int protocol);

    ~TNamedUnixSocket() {
      assert(this);
      Reset();
    }

    const Base::TFd &GetFd() const {
      assert(this);
      return Fd;
    }

    const std::string &GetPath() const {
      assert(this);
      return Path;
    }

    operator int() const {
      assert(this);
      return Fd;
    }

    bool IsBound() const {
      assert(this);
      return !Path.empty();
    }

    bool IsOpen() const {
      assert(this);
      return Fd.IsOpen();
    }

    void Reset();

    private:

    Base::TFd Fd;

    std::string Path;

    /* See <socket/address.h>. */
    friend void ::Socket::Bind(TNamedUnixSocket &socket,
        const TAddress &address);
  };  // class TNamedUnixSocket

}  // Socket